usb: ehci-msm2: replace wakelock with wakeup source

wakelock APIs are banned APIs for kernel now. Instead
of wakelocks, use wakeup sources.

Change-Id: I3ae31f875068b14f7282f787b465b8b66f2c5b02
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
1 file changed